* Remove garbage.

scripts/nix-install-package.in

@@ -13,7 +13,7 @@ downloading it from URL.
 
 Flags:
   --profile / -p LINK: install into the specified profile
-  --non-interactive: don't run inside a new terminal XXX
+  --non-interactive: don't run inside a new terminal
 EOF
     ; # '
     exit 1;

scripts/nix-prefetch-url.in

@@ -48,7 +48,7 @@ if test -z "$finalPath"; then
 
     tmpPath=/tmp/nix-prefetch-url-$$ # !!! security?
     tmpFile=$tmpPath/$name
-    mkdir $tmpPath
+    mkdir $tmpPath # !!! retry if tmpPath already exists
 
     # Optionally do timestamp-based caching of the download.
     # Actually, the only thing that we cache in $NIX_DOWNLOAD_CACHE is